About   Help   FAQ
Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Impa1tm1Lex
targeted mutation 1, Lexicon Genetics
MGI:3529209
Summary 1 genotype
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Impa1tm1Lex/Impa1tm1Lex involves: 129S5/SvEvBrd * C57BL/6 MGI:4438445


Genotype
MGI:4438445
hm1
Allelic
Composition
Impa1tm1Lex/Impa1tm1Lex
Genetic
Background
involves: 129S5/SvEvBrd * C57BL/6
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Impa1tm1Lex mutation (2 available); any Impa1 mutation (22 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• most mice die between E9.5 and E10.5
• however, mice from parents supplemented with myo-inositol are present at a normal Mendelian ratio at weaning

behavior/neurological
• 63% of mice treated with pilocarpine exhibit seizures unlike similarly treated wild-type mice
• rate of pilocarpine-induced seizures is similar to in wild-type mice pre-treated with lithium
• regardless of inositol supplementation, mice exhibit hyperactivity or stereotypy (i.e. jumping) unlike wild-type mice
• in an open-field test, inositol-rescued mice and inositol-rescued mice supplemented with inositol prior to testing exhibit increased distance traveled and time moving compared with wild-type mice
• however, inositol-rescued mice and inositol-rescued mice supplemented with inositol prior to testing do not exhibit increased number of moving episodes in an open-field test
• in a forced swim test, inositol-rescued mice and inositol-rescued mice supplemented with inositol prior to testing exhibit decreased immobility compared with wild-type mice
• in an open-field test, inositol-rescued mice and inositol-rescued mice supplemented with inositol prior to testing exhibit increased rearing compared with wild-type mice
• regardless of inositol supplementation, mice exhibit hyperactivity or stereotypy (i.e. jumping) unlike wild-type mice

nervous system
N
• mice exhibit normal brain morphology
• 63% of mice treated with pilocarpine exhibit seizures unlike similarly treated wild-type mice
• rate of pilocarpine-induced seizures is similar to in wild-type mice pre-treated with lithium





Contributing Projects:
Mouse Genome Database (MGD), Gene Expression Database (GXD), Mouse Models of Human Cancer database (MMHCdb) (formerly Mouse Tumor Biology (MTB)), Gene Ontology (GO)
Citing These Resources
Funding Information
Warranty Disclaimer, Privacy Notice, Licensing, & Copyright
Send questions and comments to User Support.
last database update
07/05/2024
MGI 6.24
The Jackson Laboratory